Fuel pump mounting



March 14, 1950 A. c. KORTE FUEL PUMP moun'rmc 5 Sheets-Sheet 1 FiledNOV. 13, 1945 1 I I I r I I INVENTOR. ALFRED C. KORTE Kw M Y E N R O T TA March 14, 1950 A. c. KORTE 2,500,834

FUEL PUMP. MOUNTING Filed Nov. 13, '1945 3 Sheets-Sheet 2 INVENTOR.ALFRED C. KORTE ATTORNEY March 14, 1950 A. c. KORTE 2,500,834

FUEL PUMP MOUNTING Filed Nov. 13, 1945 3 Sheets-Sheet 5 15 g 25 /7 f /6.ll.'. J '/5 y 17 FIG.3. T

2/ Q INVENTOR. ALFRED C. KORTE "aw/K ATTORNEY Patented Mar. 14, 1950 Fres 2.500334 V rum. rum Momv'rnm Alfred c. Korte, St. Louis. Me, alcknorto omel- Carburetor Corporation, St. Louis, Mo., a corporation ofDelaware Application November 1:, 1945, serial No. 628,288

1 This invention relates to fuel tanks and consists particularly innovel means for mounting-a fuel pump or other accessory within the tankwhile providing for sealed connections through the tank wall and forready access to the pump or accessory for inspection or repair purposes.

A co-pending application of the present-inventor, Serial No. 473,683,flied January 21', 1943,

now Patent No. 2,394,860, illustrates a novel form of electric fuel pumpwhich operates normally submerged in the fuel tank of an automotivevehicle. Where the fuel tank is not originally constructed for receivingthis pump, it is necessary to cut holes in the tank wall through whichthe 2 Claims. (Cl. 158-863) ll. conveniently of synthetic rubber, whichro- V .tat biy mount apertured bosses or eyes it at ture with an openingfor insertion, of the pump and with a readily detachable closure tofacilitate inspection and repair of the pump.

Another object is to provide tank wall structure having an opening forinsertion of the pump. and a readily detachable closure which mounts thevarious pump connections.

Still another objectis to provide wall structure for closing the openingprovided in a fuel tank wall for receiving such an accessory, said wallstructure including sealing means for the accessory.

These objects and other more detailed objects hereafter appearing. areattained by the structure illustrated in the accompanying drawing inwhich Fig. 1 is a' sectional view of a fueltank structure embodying theinvention, a fuel pump being represented in elevation.

Fig. 2 is a disassembled view showing the upper parts of the tankstructure.

Fig. 3 is a view showing the lower part of the tank structure, with thefuel pump disassembled.

Fig.- 1 shows a portion of'a fuel tank for an automotive vehicle, forinstance, having a top wall In with an opening II and a bottom wall Hwith an opening I 3. Opening ll provides for admission into the interiorof the tank of an electrical fuel pump, generally indicated at H whichmay be of the type described and claimed in the above mentionedco-pending application. Thepump body is provided with projectingtrunnions the ends of handle brackets II. These brackets are both-turnedupwardly, as in the case of the left hand bracket I! in Fig. 3, tofacilitate grasping the pump and inserting the same through opening-ll.A pair of cradle members l8 have semi-fillifcular recesses IQ forreceivingthe eye portions of handle brackets I 'i so as to stablypositidn the pump. Cradles l8 are riveted to the central depressedportion 20 of a separate plate attached to tank bottom wall 12 bymachine screws 22. Plate 2| is then soldered around its edgesyf as at23,so that bottom opening i3 is permanently sealed to prevent leakage.

Afterthe pump-is rested in cradle recesses l9. handle, brackets ii areturned outwardly, as in case of the right hand bracket in Fig. 3 so asto lie flat against' ledges 24 projecting outwardly from Qcradle membersl8. Thereafter, wing screws 25 threaded in the handle brackets, arescrewed downwardly to solidly attach the pump to its mounting structure.This pump mounting means is illustrated and claimed in detail in acopending application Serial No. 537,552, filed May 2'1, 1944, {nowPatent Number 2,424,469 issued July 22, 1947-,5fn the name of thepresent applicant.

Upper opening II is provided with detachable closure structure includinga separately formed :plate 30 having a pair of orifices 3| and 32. A itube fitting '33 is received in orifice 3| an secured in position bymachine screws 34. A gasket 35 interposed between the fitting and plateprevents leakage. The fitting is screw threaded in its upper extremity.for attachment of a tube or pipe (not shown) leading to the engine. Asealing fitting it is threaded into the lower opening of fitting Q3 andattaches thereto a flexible fuel conduit 31 which extends to outletfitting 38 on the ump and serves as the fuel delivery connection.

Fitting 36 is of a known type and comprises an angular wrench receivingcentral part and an externally threaded portion 38 receiving a nut 40,externally, and the end of conduit 31, internally. A sleeve 4| having abent-in extremity l2 urged to bite into the conduit by nut 40 seals thispart of the fitting, Member 36 also has a reduced tubular portion 43with a flared extremity which is urged against a shoulder 44 in fitting33 by a nut 45 received on element 43. A packing it prevents leakagebetween element 43 and nut 45. Fitting 33 also has a by-pass restriction41 which provides for instantly breaking the siphon in the fuel line asthe pump stops, where the carburetor is located at a low level as isfrequently the case in buses.

The second orifice 32 in upper plate 90 is closed by a pair of hollow,wire sealing fittings 48 and 49 provided with flanges 50 andrespectively, which seat against sealing washers 52 and 53 interposedbetween plate 30 and the fittings. These fittings, washers, and theplate are sealingly secured together by machine screws, as at 54.

Lower fitting member 49 has upstanding structure 55 which, in theassembly, is nested within upper fitting 48. Structure 55 firmly holdsthe end of electrical wire 51a and protecting flexible cable 51. Athreaded boss 58 forms a terminal for connection of a wire 56 by meansof a terminal screw 60. Wire 56 extends through a threaded outletopening iii in fitting 48 which receives a pair of washers 62 and 63,the latter being of resilient material, such as synthetic rubber, andbeing squeezed into sealing fit with the wire and fitting by a nut 64.

A U-sectioned sheet metal ring 66, shaped in general correspondence withthe circumference of opening H and plate 30 has flanged base portions 61and 68 which rest against tank wall and are bolted and soldered theretoas at 69 and 10. The central recessed portion of this ring receives atregular intervals a series of nuts II spot welded in position so as toform, in effect, integral enlargements on the ring. Interposed betweenplate 30 and ring 66 is a sealing gasket 12 of suitable yieldingmaterial such as cork or synthetic rubber. The plate, gasket, and tworings are detachably but sealingly secured together by cap screws 13circumferentially arranged at regular intervals and threaded into nutsH. Thus, the fitting supporting edge of tank plate I0 is reinforced andsealing pressureis applied to ring 66 rather than the less substantialmaterial of the tank wall.

In order to equip a fuel tank for mounting the pump, it is necessaryfirst to cut the openings H and I3 therein in vertical alignment. Lowerplate structure 2| carrying cradle members It is then permanentlysecured over lower opening l3. The motor is then mounted on the cradlemembers and the delivery tube and electrical connection are connected tothe appropriate flttings previously attached to plate 30. Next, ring 66is bolted and soldered into position about the upper opening and theupper plate structure is bolted to the ring element. Finally, wire 56leading to the battery is sealed by nut 64 and the fuel delivery tube isconnected to the upwardly exposed threaded opening in fuel deliveryfitting 33. The pump is then properly mounted inside the tank and itselectrical and fluid conduits connected for operation, respectively, toa source of electrical energy and the engine fuel intake, both outsidethe tank. If it is desired to inspect or repair the pump, this can bedone by removal of the entire upper plate structure by the withdrawingof machine screws 13 whereupon wing screws 25 can be released and thepump unit removed from the tank.

The invention may be modified in various respects as will occur to thoseskilled in the art and the exclusive use of all modifications as comewithin the scope of the appended claims is contemplated.

I claim:

1. Fuel tank wall structure providing for sealing attachment and supportof a conduit passing through the wall comprising a separately formedplate, accessory connecting and sealing ing ring shaped incorrespondence with an opening in the tank wall to be closed by saidplate and of inverted U-section, a sealing washer for interpositionbetween said ring and said plate, bolts detachably securing togethersaid ring, washer, and plate, said ring forming a hollow, raised partfor directly receiving said washer and bolts and having flanged legsforming a relatively broad base part for resting against and permanentattachment to the tank wall, and a series of nuts lodged in said hollowpart of said ring for securing said bolts.

2. Wall structure for closing an opening in a fuel tank wall providedfor receiving a fuel pump and for sealing attachment and support of pumpoperating connections comprising a separately formed plate, fuel pumpconnections mounted on said plate, a sheet metal bolting ring shaped ingeneral conformance with the tank wall opening and of U-section withflanged legs, sealing means interposed between said ring and the plate,a seriesof threaded elements lodged against the inner portion of saidring opposite said sealing means, and bolts detachably securing togethersaid ring, sealing means, and plate and received by said elements, saidleg flanges of said ring forming a broad base portion for restingagainst and permanent attachment to the tank wall about said opening andbeing relatively rigid laterally for bracing the tank opening.

ALFRED C. KORTE.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS.

Number Name Date 1,579,672 Strecker Apr. 6, 1926 1,908,092 Whitted May9, 1933 2,084,605 Webb June 22, 1937 2,306,297 Curtis Dec. 22, 19422,352,958 Lauer et al. July 4, 1944 2,369,440 Curtis Feb. 13, 19452,370,590 Taylor Feb. 27, 1945

